203315523253 has 2 divisors, whose sum is σ = 203315523254. Its totient is φ = 203315523252.

The previous prime is 203315523227. The next prime is 203315523263. The reversal of 203315523253 is 352325513302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203240475684 + 75047569 = 450822^2 + 8663^2 .

It is a cyclic number.

It is not a de Polignac number, because 203315523253 - 2⁵ = 203315523221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203315523223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101657761626 + 101657761627.

It is an arithmetic number, because the mean of its divisors is an integer number (101657761627).

Almost surely, 2^203315523253 is an apocalyptic number.

It is an amenable number.

203315523253 is a deficient number, since it is larger than the sum of its proper divisors (1).

203315523253 is an equidigital number, since it uses as much as digits as its factorization.

203315523253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 203315523253 in words is "two hundred three billion, three hundred fifteen million, five hundred twenty-three thousand, two hundred fifty-three".